Actually beaver I've heard the ww1 ross's were the best target rifles, lol
Make sure you get a Mk III Ross, Canadian made ammo and for gods sake keep her out off the mud!
My choice........begrudgingly.....Lee-Enfield
As mentioned it has a faster cyclic rate, longer sight radius and is better suited to extreme conditions operation.
While the mauser's 7.9x57 ammunition is marginally better than the 303 British in terminal performance, the triggers on most K98K's are like two pieces of concrete being dragged across each other, and their all to comon Zf1 scout scopes leave much to be desired.
The mish mash of receiver variants make scope selection for sniper duty a royal pain and I would NEVER drag an aluminum bath bead chain down my bore.
All this being said I dislike the Lee-Enfield's two piece stock, garish appearance, ammunition, and the removable magazine that's not meant to be removed. I also dislike the spindly bolt with the rear locking lugg....good thing its only chambered in 303British.....but even then.
This is the one time that I would wish to have been born an American.

......with a Redfield scope